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<p>Reports unconditional redeclarations of names without being used in between.</p>
<p><b>Example:</b></p>
<pre><code>
def x(): pass


x = 2
</code></pre>
<p>It applies to function and class declarations, and top-level assignments. </p>
<p>When the warning is shown, you can try a recommended action, for example, you might be prompted to
  rename the variable.</p>
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